流动人口:社会体育的新课题--来自调研中的思考

体育从来都不是游离于社会而孤立向前发展的，社会的每一重大进步，几乎都可以在体育中找到它所带来的积极“产物”。同样，社会在发展过程中所出现的社会问题，也将会以不同的方式折射到体育中来，“流动人口”带给社会体育的挑战正是这一折射的反映。本的思考，缘起于调研中的一组数据，随后由潮起潮涌的今日之民工流动，引伸出本的主题——“流动人口：社会体育的新课题”，并围绕主题阐述了流动人口给城乡体育带来的挑战，以及应对挑战的对策和建议。     

人体体成份检测方法

通过文献法对国内外现有的人体体成份检测方法发展状况进行概述,显示:人们对人体组成成份的研究随着近年来检测仪器和设备的迅速发展而进一步深入,测量结果也越来越精确。     

传统体育对绝经女性骨密度的影响

为了探讨传统体育锻炼对绝经女性骨密度的影响.将60名绝经女性,随机分为非体育锻炼组和跳绳、木兰拳、太极拳套路及太极推手等4个运动组,经10个月的实验.结果表明,非锻炼组骨量丢失,骨密度下降,4个运动组的骨密度均增加,并且太极推手组所测各指标及跳绳组桡、尺骨骨密度增加得更明显;经组间比较,太极推手组优于跳绳组(P<0.05),跳绳组优于木兰拳或太极拳套路组(P<0.05).结论:传统体育跳绳、木兰拳及太极拳运动对绝经女性骨密度的影响是积极的,是绝经女性抵抗骨量丢失,促进骨密度增大的有效运动,并且太极推手对骨量增加更全面,增大骨密度更有效.     

太极拳锻炼对老年男性睾酮血清浓度影响的研究

太极拳锻炼能通过“意守丹田”，调节大脑皮层功能，调节垂体功能，调节靶腺器官功能，使长期进行太极拳锻炼的老年男性与一般老年男性相比，睾酮血清浓度有显著性差异，进而达到祛病健身、延年益寿的作用。     

一类几何图形关于某轴对称的重心同一性

一类在现实生活中比较有意义且具有同一性的几何图形的重心位置 ,主要由常见二次曲线与直线围成的图形关于某轴对称以及一些立体关于某轴对称且重心具有同一性的某些结果     

女子短跑运动员月经周期运动能力的初步研究

本文运用“双盲”实验的方法,对短跑运动员在月经周期中运动能力的变化情况进行了研究。发现运动员的运动能力与体内孕酮的浓度呈正相关;与雌二醇的浓度呈负相关。在月经周期三个阶段运动能力在排卵后期最强,其次是月经后期,而排卵期则较差。     

人口老龄化背景下图书馆工作的探索

老年读者群体正在成为图书馆中一个持续稳定并不断壮大的特殊读者群体。从人体工程学角度分析了老年人的生理和心理特征以及老年读者对图书馆的特殊要求,对人口老龄化背景下的图书馆工作进行了科学全面的探讨和分析,并提出了一些建设性意见,以期探索出适宜老年人阅读和活动的图书馆环境。     

期刊文献分布特征的分析

以1999-2003年生物技术学科期刊文献分布曲线为依据,利用知识密度梯度graduR(n)的概念,对知识场中文献分布特征进行分析。结果表明,在任何一个学科的知识场中,集中区文献分布呈间断性变化,离散区文献分布呈连续性变化,从而构成期刊文献分布的基本特征。基于此,指出期刊文献分布特征研究是对文献分布规律的进一步描述。     

Sampling Methods and Sample Populations in Quantitative Mass Communication Research Studies: A 15-Year Census of Six Journals

This study evaluated the sampling methods and sample populations used in all U.S.-based survey and experimental mass communication studies published between 2000 and 2014 in six major journals (N = 1,173). Most studies used nonprobability samples, and more than half used student samples. Experiments used more nonprobability and student samples than surveys. Funded studies used more probability and nonstudent samples than nonfunded studies. Implications of results pertaining to population validity and interpretations of findings for mass communication research are discussed.     

Childhood sexual abuse by representatives of the Roman Catholic Church: A prevalence estimate among the Dutch population

Estimates of the extent of childhood sexual abuse (CSA) within in the Roman Catholic Church (RCC) in the general population are difficult to find. The independent Commission of Inquiry into sexual abuse of minors in the RCC in the Netherlands collected population-based data to estimate its prevalence. A large random online population sample was surveyed using a two-phase stratified sampling procedure. In Phase 1, 34,267 subjects aged 40 years and older were screened for childhood exposure to sexual abuse by non-family members, a history of institutionalization and a Roman Catholic upbringing. In Phase 2, a stratified subset of 2,462 subjects was assessed to obtain more detailed target information about sexual abuse reports within the RCC. We employed multiple imputation for the estimation of RCC CSA in the original Phase 1 sample. The prevalence of non-familial CSA in general (14.0%) was higher among women (17.2%) than among men (10.6%). The prevalence of CSA within the Dutch RCC (1.7%) was higher among men (2.7%) than among women (0.7%). As expected, older subjects reported more often CSA in the RCC than their younger counterparts. Respondents who stayed for some time in RCC run institutions for education or child protection had a higher risk to report sexual abuse. Although sexual abuse of minors by representatives of the RCC was a structural problem during a period that the Church was highly influential in the Netherlands, the estimated prevalence of the phenomenon is only a fraction of the prevalence rate of non-familial CSA.